Flare?

[jschweigl]

<center><img src="http://www.photo.net/photodb/image-display?

photo_id=1123682&size=lg"><br><br></center>

Please have a look at the four bright spots near the lower edge of

the picture - seems to be a reflection of the four bright lights on

the top. Is this what I should expect from a Summicron 2/35 ASPH? If

the positon of the spot wouldn't match the inverted lights above I'd

have suspected some development problem, but it seems to be flare.

What do you say?

[henry_ting2]

Under such condition of dark background and shooting towards

any light source will cause ghost-imaging regardless of how the

lens is designed to deter these hotspots. Eliminating any

filtering will lessen it to some degree.

[albert_smith]

That effect is usually called ghosting. It is a repeat of the 4 lights on the pole. Flare is more of a general lowering of contrast and usually has a more hazy shape. I have seen this effect many times with my Nikkors at night, and not too often with my Leica lenses.

 

Did you have a filter on the front?

[kelly_flanigan1]

<img src="http://www.ezshots.com/members/tripods/images/tripods-350.jpg">

[bas1]

Similar type of shot, show no such thing<div></div>

[albert knapp md]

It is ghosting which in my book is just another type of flare. This

is very hard to prevent BUT you can 1. use MRC filters or better

yet no filters (the fewer the number of elements, the less chance

of flare,) and 2. stop down your lens at night. The more open a

lens is with a nearby light source, the greater teh probability of

flare.

[albert knapp md]

I should also have mentionned that the flare can be

mitigated/removed by using photoshop.

[sheridan]

Super-Angulon-R, at f4.

 

Notwithstanding the pundits, I have faith in this lens, a ten

element 1968 Schneider design, to resist flare and ghosting

quite well, even at full aperture in testing night conditions.<div></div>

[jschweigl]

Checked the M7 that I used that night. Completely forgot to remove the Leica UV filter I usually have on the lens for some protection. I'm quite sure that the ghosting is mainly caused by the filter glass as some of you have mentioned. Anyway, this experience will remind me NOT to mount a filter for lens protection when protection is not needed ...

 

Thanks to all.

[michael_kastner]

Hi Johann! Yes, an old problem discussed so often here, so I'm not going to go on and on... Just forget UV filters. If you really want to protect your lens against anything -- like too much light from a bad angle, or any scratching or bumping -- just keep a hood on it at all times.

[Robin Smith]

This clearly demonstrates the lack of value of UV filters in everyday shooting.